An Algorithm for Generating Feasible Low Thrust Interplanetary Trajectories

نویسندگان

  • Prashant R. Patel
  • Alec D. Gallimore
  • Thomas H. Zurbuchen
  • Daniel J. Scheeres
چکیده

Electric propulsion has offered the promise of more efficient transportation throughout the solar system. Capitalizing on EP’s promise requires a new set of tools that can rapidly conduct trade studies to help scientists and mission designers understand the advantages and costs of various EP systems. This paper presents a proof of concept program and the underlying algorithm that allow for the computation of feasible EP trajectories. The tools described in this paper are designed to be simple to use and require minimal user input. The goal of these tools is to demonstrate that the feasible EP trajectories can be computed quickly and easily. When coupled with optimization algorithms, these methods allow for the optimization of trajectories without requiring the user to specify control inputs.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optimization of Very-low-thrust Trajectories Using Evolutionary Neurocontrol

Searching optimal interplanetary trajectories for low-thrust spacecraft is usually a difficult and time-consuming task that involves much experience and expert knowledge in astrodynamics and optimal control theory. This is because the convergence behavior of traditional local optimizers, which are based on numerical optimal control methods, depends on an adequate initial guess, which is often h...

متن کامل

Global Low-Thrust Trajectory Optimization through Hybridization of a Genetic Algorithm and a Direct Method

To expand mission capabilities needed for exploration of the Solar System, optimal lowthrust trajectories must be found. However, low-thrust, multiple gravity-assist trajectories pose significant optimization challenges because of their expansive, multimodal design space. Here, a novel technique is developed for global, low-thrust, interplanetary trajectory optimization through the hybridizatio...

متن کامل

Optimizing low-thrust and gravity assist maneuvers to design interplanetary trajectories

In this paper a direct method based on a transcription by Finite Elements in Time has been used to design optimal interplanetary trajectories, exploiting a combination of gravity assist maneuvers and low-thrust propulsion. A multiphase parametric approach has been used to introduce swing-bys among thrust and coast arcs. Gravity maneuvers are at first modeled with a link-conic approximation and ...

متن کامل

Aas 16-239 Global Optimization of Low-thrust Interplanetary Trajectories Subject to Operational Constraints

Low-thrust interplanetary space missions are highly complex and there can be many locally optimal solutions. While several techniques exist to search for globally optimal solutions to low-thrust trajectory design problems, they are typically limited to unconstrained trajectories. The operational design community in turn has largely avoided using such techniques and has primarily focused on accu...

متن کامل

Optimization of Interplanetary Trajectories for Impulsive and Continuous Asteroid Deflection

The chaotic dynamic of near earth objects and our limited knowledge on the asteroid population makes it impossible to predict the next impact of an asteroidwith our planet. The collision at Jupiter of the comet Shoemaker– Levy 9, the more recent discovery of the asteroid 99442 Apophis, and other similar events, have stimulated the discussion on our capabilities of deflecting an asteroid in coll...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009